BMW 3 5 Series E60 E90 330d 530d M57N2 ECU Engine Kit DDE 7801712 CAS2 + Key

BMW 3 5 Series E60 E90 330d 530d M57N2 ECU Engine Kit is a set from the Electronic control modules and controllers category, designed for advanced engine management in selected BMW models with the M57N2 engine. This solution is created for drivers who expect stable engine performance, correct communication with the vehicle's electrical system, and consistency of all key control parameters.

Specifications and technical data

• SKU: 7801712-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7801712
• Substitutable numbers: 13617808222 0281013253, 7808222 0 281 013 253, 13617799856, 13617803369 13617797499 13617805350, 13617801217 13617801712 13617798182, 13617798506 13617799208 13617797247, 7799856, 7803369 7797499 7805350, 7801217 7801712 7798182, 7798506 7799208 77
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The presented ECU kit is a component responsible for precise control of the diesel engine in BMW 3 Series E90 330d and 5 Series E60 530d models with the M57N2 unit. The module manages, among other things, fuel dosing, turbocharger operation, injection corrections, and communication with other vehicle electronic systems, ensuring consistent operation of the entire powertrain.

Thanks to its factory OEM design, the controller works with the vehicle's communication bus, enabling proper data exchange with other modules and maintaining factory engine performance characteristics. This is particularly important during repairs where maintaining the original control logic and compatibility with the car's equipment is required.

Compatibility and interchangeable part numbers

The item has a dedicated OEM part number and a set of interchangeable numbers, which facilitates the selection of the appropriate controller for a specific vehicle configuration. The presence of multiple reference numbers allows the module to be matched to various equipment variants and model years within the same engine family, while maintaining electrical and software compliance.

Before purchasing, it is worth comparing the markings with the existing controller in the car or service documentation to confirm full compatibility. In case of doubt, specialized catalog tools or consultation with a mechanic specializing in BMW electronics may be helpful.

Condition, origin, and advantages of using OEM parts

The offered kit comes from the BMW OE line, which means it is an original component designed to work in the manufacturer's specific models. Using an OEM controller minimizes the risk of communication problems between modules, diagnostic errors, or improper operation of systems related to the engine.

As a used item, the controller is an attractive cost-effective alternative to new components, while maintaining the factory design and purpose. This is a solution often chosen for professional repairs where both economy and compliance with the vehicle's original electronic architecture are important.

Safe selection and expert support

Selecting the right ECU for a BMW requires paying attention to the OEM part number, interchangeable numbers, and vehicle configuration (engine, model year, equipment). To better understand when it is worth choosing a used engine controller and how to assess its suitability, it is worth reading the guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

If you want to further organize your knowledge on verifying component compatibility by OEM numbers and avoid mistakes when shopping online, a practical article will be helpful: Online parts shopping without risk – 5 proven ways to verify component compatibility by OEM numbers and paint codes.

Expanding the control system in a BMW

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional controllers, engine management modules, or auxiliary electronic units, check the available parts in the BMW electronic control modules and controllers category.

Choosing components from this group allows you to maintain the consistency of the entire electronic system, facilitates diagnostics and service, and increases the chance of seamless integration with the existing vehicle installation. Thanks to this, the repair or upgrade of the control system in a BMW E60 or E90 can proceed more efficiently and with a lower risk of incompatibility.